Note 2. Recent Accounting Pronouncements and Supplemental Information - Goodwill and Other Intangible Assets Textuals (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Goodwill, Impairment Loss	$ 0
Goodwill	11,160,000		$ 11,160,000		$ 11,160,000
Amortization	547,000	$ 484,000	1,068,000	$ 959,000
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	1,143,000		1,143,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	1,955,000		1,955,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,616,000		1,616,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,373,000		1,373,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,201,000		1,201,000
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	5,222,000		5,222,000
Indefinite-lived Intangible Assets (Excluding Goodwill)	$ 0		$ 0
Software and Software Development Costs | Minimum
Finite-Lived Intangible Asset, Useful Life			3 years
Software and Software Development Costs | Maximum
Finite-Lived Intangible Asset, Useful Life			10 years
Customer Relationships
Finite-Lived Intangible Asset, Useful Life			20 years
Trade Names
Finite-Lived Intangible Asset, Useful Life			10 years
Non-Compete Agreements
Finite-Lived Intangible Asset, Useful Life			5 years